RF2370 データシートの表示（PDF） - RF Micro Devices

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RF2370

3V LOW NOISE AMPLIFIER

RF Micro Devices 

RF2370

Pin Function Description

Interface Schematic

1

BIAS

For low noise amplifier applications, this pin is used to control the bias cur-

rent. An external resistor can be used to set the bias current for any VBIAS

voltage.

V B IA S

2

GND1

Ground connection. For best performance, keep traces physically short

and connect immediately to ground plane.

3

RF IN

RF input pin. This part is designed such that 50Ω is the optimal source

impedance for best noise figure. Best noise figure is achieved with only a

series capacitor on the input.

To Bias

Circuit

RF OUT

RF IN

4

RF OUT

Amplifier output pin. This pin is an open-collector output. It must be biased

to VCC through a choke or matching inductor. This pin is matched to 50Ω

with a shunt L, series L topology enhances to stability of the device by

reducing the high frequency gain above 6GHz.

5

GND2

See GND1.

6 GAIN SELECT This pin selects high gain and bypass modes.

Gain Select<0.8V, high gain.

Gain Select>1.8V, low gain.

A series resistor of 100Ω is required on this pin to enhance stability.

Rev A7 DS071115

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

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